基于数字签名的多媒体认证

Multimedia authentication based on digital signature

本文讨论多媒体认证框架和一种认证的算法,并针对目前基于身份签名方案中去除用户对私钥产生中心无条件信任的签名方案的不足,提出了一种新的基于身份的签名方案。该方案解决密钥托管的问题,除了用户对私钥产生中心的无条件信任,减少验证签名的时间,能抵抗适应性选择消息和身份的存在性伪造攻击。在同等安全性下,该方案具有更高的效率。

This paper discussed media authentication schemes and one algorithm of authentication. Based on some ID-based on signature schemes, without masted PKG defects, this paper proposed a new ID-based on signature scheme. In this scheme, the verifier could verify PKG private key, construct the confidence on private key center which cut down the time of verification, resistant to adaptive message and identity of the existence of forgery attack. In the same condition, it would have a higher efficiency.